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LNB series
F
EATURES
•
•
•
•
•
•
•
Single Output
DC/DC Converter
6 sided Continuous Shielding
Up to 85% Efficiency
Output Overvoltage Protection
1500 VDC Input/Output Isolation
Industry Standard 1.0” X 2.0” X 0.4” Package
Short Circuit Protection
Synchronization
D
ESCRIPTIONS
The LNB series are 10 watts low-profile dc-dc converters
that operate over input voltage ranges of 4.5 - 7 VDC, 8 - 16
VDC and 18 - 36 VDC, and provide precisely regulated output
voltages of 3.3V, 5V, 12V and 15V.
The -30
o
C to +71
o
C operating temperature range makes the
LNB series ideal for data communication equipments,
mobile battery driven equipment, distributed power systems,
telecommunication equipment, mixed analog / digital
subsystems, process/machine control equipment, computer
peripheral systems and industrial robot systems.
I
NPUT
C
HARACTERISTICS
Min Typ Max Units/Comments
Input Voltage
5 VDC Input Models
12 VDC Input Models
24 VDC Input Models
OverVoltage Shut Down
5 VDC Input Models
12 VDC Input Models
24 VDC Input Models
4.5
8
18
7
16
36
9
19
39
VDC
VDC
VDC
VDC
VDC
VDC
O
UTPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
±1
Output Voltage Set Point
% Output voltage at
nominal line & FL
-0.1
+0.1 Vo measured from
Line Regulation
min. input line to
max.
+0.1 % Output voltage
-0.1
Load Regulation
measured from FL
to no load
0.01 % per degree C
Temperature Coefficient
10 mV p-p measured
Ripple/Noise
at 10 MHz bandwidth
with external 5
μf
low ESR capacitor
Output Voltage and Current
Refer to model
selection chart
4 % deviation of Vout
2
Transient Response
Deviation
voltage for step load
20-80% & 50-100%
for 500μS
Short Circuit Protection
Indefinite, Automatic
Recovery. Hickup.
125
Overvoltage Protection
% Hickup. See
model selection chart
10 mS
Turn-on Time
8 mS
Logic Turn-on
G
ENERAL
C
HARACTERISTICS
Clock Frequency
Switching Frequency
Isolation Voltage
Isolation Resistance
MTBF (MIL-HBK-217F)
Isolation Capacitance
Remote On/Off
On
Off
Synchronization
Min Typ Max Unit/Comments
kHz
800
kHz
400
VDC, 1 minute
1500
Mohm, 50VDC
50
Million Hours,
0.6
+25
o
C, Ground
Benign
pF, 100kHz, 1Volt
1000
2
-0.6
5
0.5
10
VDC; Referenced to
input return
% above clock frequency
>> B-103
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E
NVIRONMENTAL
S
PECIFICATIONS
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Cooling
Min
-30
-40
0
Typ Max
+71
+100
95
Unit/Comments
o
C; Ambient
o
C; Case
% Humidity; non-
condensing
Free-Air Convection
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P
HYSICAL
C
HARACTERISTICS
Case Size
Case Material
Shield Connection
Flammability
Weight
Unit/Comments
1.0 X 2.0 X 0.4 inches
(25.5 X 51.0 X 10.2 mm)
Coated Metal with Non-
Conductive Base
Negative Input, Pin 2
UL94V-0
40 Grams
O
UTLINE
D
RAWING
0.40
(10.2)
0.40
(10.2)
0.10
(2.54)
5X 0.040
(1.02)
DIA.
0.80
(20.3)
6
0.60
(15.2)
0.10
(2.54)
0.28 MIN.
(7.1)
0.40
(10.2)
3
+Vout
4
SYNC
5
- Vout
BOTTOM
1
2
SIDE
(50.8)
2.00
+ Vin -Vin TTL
0.20
(5.1)
0.30
(7.5)
1.00
(25.4)
P
IN
O
UT
C
HART
Pins
1
2
3
4
5
6
Single
+ Vin
- Vin
+Vout
SYNC
- Vout
TTL
Notes:
1. Unless otherwise specified dimensions are in inches (mm).
Tolerances: X.XX = ±0.02 (±0.5)
X.XXX = ±0.010 (±0.25)
2. Pin DIA. Tolerance: X.XXX = ±0.002 (±0.05)
3. Sync. pin (Pin #4) is positive with respect to -Vin (Pin #2)
All specifications are typical at nominal input, nominal load and 25
°
C unless otherwise specified.
External, low ESR, 10 microfarad (typical) capacitor across output is recommended for operation.
>> B-104
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